Unix and Linux Stack Exchange
Unix and Linux Stack Exchange

Questions tagged [sddm]

70 questions
10
votes
3 answers

How can I disable the poweroff and reboot button in sddm on Debian?

What I tried: I created the file /etc/sddm/sddm.conf (also tried /etc/sddm.conf) with the following content: [General] HaltCommand=true RebootCommand=true Unfortunately, that did not help - the reboot button continued to work. Preferably, the…
W.Mann
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9
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1 answer

sddm shows a black screen only

I'm new to Arch Linux and wanted to use the plasma 5 desktop with sddm. I'm able to start the plasma desktop via startx without any issues but when I try to use sddm it only shows me a black screen on startup. I tried to restart the sddm service…
Pascal_AC
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5
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0 answers

Possible xorg memory leak

My problem in one picture : The memory usage of xorg as a child process of sddm keeps growing with time. Everytime I restart my computer, the problem reappears after a few dozens of minutes. I tried to troubleshoot with the logfile but it seems to…
JeromeLaurent
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5
votes
5 answers

X is misrendering a rectangle around my mouse pointer

A square area around my mouse pointer is being rendered incorrectly. Instead of rendering the window it is supposed to render, it seems to be rendering the window underneath instead. It is very clear in this screenshot, which omits the mouse…
Mark Dominus
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3
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0 answers

Running Openbox and MATE in parallel with KDE causes freezing on Debian

I am running Parrot OS (Debian) with KDE as the default desktop environment and SDDM as the display manager. I want to run Openbox and MATE desktop environments parallel to KDE on different virtual terminals. However, when I switch back to KDE after…
Catalyst3474
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Black screen and cursor in SDDM

I have just bought a new computer (with an Intel Core i9 10850K CPU, so a Intel UHD Graphics 630 CPGPU). It is shown here: $ lspci -v 00:02.0 VGA compatible controller: Intel Corporation Device 9bc5 (rev 05) (prog-if 00 [VGA controller]) …
GlinesMome
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3
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1 answer

Display Manager isn't starting on fresh Debian 10 install

I just installed Debian 10 (amd64) on my desktop. During the install GUI I told it to install both the Gnome and KDE desktop environments, and when it asked me which desktop manager I wanted to use (between gdm3 and sddm) I selected SDDM. However…
irwazr
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1 answer

sddm fails to ignore users

I'm running Arch Linux KDE. I would like SDDM to ignore certain users. However, even after adding the following config file, SDDM still displays all users. I tried both usernames and user ID's for the HideUsers parameters. Neither worked (all users…
MountainX
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3
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0 answers

SDDM starts with wrong screen size on LG 27UD68-W 4K Monitor

SDDM starts with wrong screen size: according to startup the screen size is set to 3840x2160 which is supported by the monitor but not supported by the graphic card (starting X server with a higher DPI give even worse images) [ 26.011] (II)…
Alessandro Carini
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1 answer

Change the font used in the Breeze SDDM theme

The default Breeze theme for SDDM on KDE uses default fonts from somewhere I don't know of. In earlier versions of KDE/SDDM, there used to be specific files in the SDDM themes where a font could be set (using something like font.family in…
Saurav Sengupta
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2
votes
1 answer

I want to able to run a script on login

I'm running KDE Manjaro. I have a background changer script which I want to run on login, but the thing is it doesn't do that. What I want it to do is run it every time I login doesn't matter how, whether I login in on boot or login in after…
rodude123
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2
votes
1 answer

How to properly set environment variables for KDE?

I'm using Kubuntu v20.04, which I launch using SDDM. The issue I'm facing is setting some environment variables for my Xsession. I use ~/.config/plasma-workspace/env/env.sh to export my environment variables, however, I'm observing that a few…
Utkarsh Verma
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2
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3 answers

log in to a desktop manager using commands typed on a different tty

Say a computer is booted to its desktop manager (SDDM, in this case) and you want to send a command over ssh to make that computer log in as a particular user as if they logged in with the keyboard at the computer. I'm not talking about X…
jdoggsc
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1 answer

What enables Alt+Click Window Dragging

I use Kubuntu 18.04 and I wonder what component implements the Alt+ Left Click drag. Does the Display Manager SDDM implement this, or is it the X Server, or is it something within KDE? I'm sorry I don't know how all of this works together.…
O.O.
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2
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1 answer

Allow username input sddm (LDAP/Kerberos)

The overarching question: How can I enable SDDM to accept username input in Debian? Underlying/implicit questions: How does SDDM recognize users? What is the Debian alternative to /etc/sddm.conf ? Namely,on LDAP/Kereberos clients with Debian…
d-cubed
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